The type of the entity represented by the grouping and the individual of which is represented by the id. Encompass uses the loans namespace.
Example: loans

The unique identifier within the instance/namespace combination. Encompass uses loan GUID. It is not required to be a GUID.
Example: d928a96a-e575-4350-a1d7-479f2321c57b

The package identifier representing the package of documents. Unique within the instanceId/groupNamespace/groupId combination.
Example: [appropriate GUID] d928a96a-e575-4350-a1d7-479f2321c57b

Bearer token.